Description

The MightyNetERC1155Claimer contract is intended to be the logic contract behind a certain proxy contract. Implementation contracts should have a storage gap to allow for upgradability / adding new variables in future upgrades, which are missing in these contracts.

Impact

If care is not taken, new variables added in a child contract could accidentally overwrite variables in its parent contract.

Recommendations

Consider adding an appropriate storage gap at the end of upgradable contracts such as this below.

uint256[50] private __gap;

Remediation

Mighty Bear Games provided the following response:

We don’t intend to inherit from this contract.